Rule for number of functions + number of lines in functions

[byhlel]

With all the rules implemented, even if it becomes a bit tedious, you could enhance your work with those functionalities/further checks.

Or, I have developed a small C code dedicated to this maybe we could combine both.

[Allexio]

Hi Byhiel,
Thanks for opening this issue, I had no idea someone would come find this further down the line!
Feel free to make a pull request adding this feature ;)